Alderley

Technical excellence: delivered

Application NotesSlops Water Treatment Package

Project Name:Quad 204 Project

Location:Quadrants 204 and 205 of the UKCS, approx. 130km west of Shetland

EPC Contractor/Consultants:KBR

End User:BP

Scope of ApplicationThe scope of supply for this project is to provide a slops water treatment package for the FPSO vessel to replace the existing Schiehallion vessel, to continue the development and exploration of hydrocarbon reserves in and around the Quad 204 area. A skid mounted hydrocyclone package is to treat the slops waters from the dirty slops water tank on board the FPSO. The package consists of 1 x 100%, 26” NB hydrocyclone vessel, complete with instrumentation and piping for efficient and safe operation.

The vessels are fabricated from duplex stainless steel and piping in low temperature carbon steel. The hydrocyclone package is capable of treating a maximum flow rate of 200 m3/hr of dirty slops water.

Quad 204 FPSO Application Performance

The package is designed to treat oily slops water with an inlet concentration of 1,000 ppm(v) to achieve a guaranteed outlet of <15 ppm(v) using Alderley’s AP20 high efficiency deoiling hydrocyclones.

Alderley

www.alderley.com

Rev. 04.01.17

Applicable Standards

API RP 520/521: Pressure-relieving and Depressuring Systems

ASME B31.3: Process Piping Standard

ASME 16.5: Pipe Flanges and Flanged Fittings

PD5500: Specification for unfired, fusion welded pressure vessels

NACE MR0175/ISO 15156: For the design of H2S containing vessels

• 1 x 100% Hydrocyclone vessel

• 2 off Differential pressure transmitters (FF Protocol)

• 1.5” 300# LTCS pressure differential control valve

Main Equipment